Injector



May 16, 1933. c BREER ET AL 1,909,452

INJECTOR Filed Aug. 24, 1929 2: 24/ if m INVENTOR GA RL BREE/ AND ME LBOURNE L. GARPENWL'R 5y MTTORNEY {feme STATES; PATENroFFicE;

CARL'BBEER AND ME OURNE L; cAitPENTIER, on DETROIT, MICHIGAN, AssIenoRs TO CHRYSLER CORPORATION, OF nn'rnoir, MICHIGAN, A CORPORATION or DELAT;

Patented May 16, 1933 WARE INJECTOR Application filed August 24, 1929. SerialNo. 388,215;

This-invention relates to a means and method'for'lmprovlngthe operation of an internal combustion engine by'supplying thereto acarbon removing compound for firemovi'ng or preventing the formation ofcarshown in elevation.

bon deposits on the interior of the cylinders.

It is-oneof the objects of this invention to utili'ze-the suction of the engine to draw asupply of'carbon removing compound to the engine and to provide a means within convenient reach of the operator for controlling a supply of such compound whereby it may be admitted'to the cylinders while the engine is running; I

In onetembodiment of the invention a supply of the compound may be stored in a container detachably secured to a controlling mechanism in communication with a conduit-leading from-the intake manifold of the engine to a vacuumtank. By such an ar rangement the compound may be stored ready for use in the same container in which it isdispensed and which may be placed in a convenient location in an inexpensive and efficient manner.

Other objects and advantages of the invention, including a'novel controlling mechanism,'-will more fully appear from the following description taken in connection with 'theaccompanying drawing; in which:

Fig, 1 is aview illustrating an adaptation of my improved device, the parts being Figi '2' is an enlarged sectionahview 0n lin '22 'o f Fig. 1." I

Referring to the drawing wherein. I have illustrated one embodiment of my invention, thegreference numeral 10 designates a portionof' an internal combustion engine having an exhaust manifold 12 and an intakemanifold" 14, to which is attached a suitable carburetor lfi. A vacuum tank 18 is shown mo'unted' on a dash 200i a vehicle body adapted to deliver-fuel from a fuel supplyynot shown, through a pipe 22 to the"carbureter 161 The fuel is delivered fromthe vacuum tank 18 to the'carburetor 16' by gravity,'jthrough a pipe-2e. A sediment chamber 26 is provided on the vacuum tank between the tank and the pipe 24.

Fuel isdrawn to the vacuum tank through the pipe 22 by the suction in the intake manifolc'l- 14C,'-such suction being applied to the vacuum'tanlrthrough the pipes 28andl 80. These pipes are portions of a single pipe out. intwo when the device is-installed on a vehicle after it has been manufactured:

In! Fig. 2 I have-illustrated one form of my improved device for injecting acarbon 2 removing compound into the cylinders of an internal combustion engine. :A body portion 82 is provided with a longitudinal bore 34 the diameter of which is reduced at one end toprovide a shoulder 36. The

body portion 32 is provided'with a flange 38 which is bolted or otherwise secured to} onefside of the dash 2O with'a portion of the body portion extending through thedash; as" at 40; On the lower surface of the body;

portion 1- have provided an annular flange 42 adapted todetachably receive a receptacle l4 containing a supply of a; carbon re moving-compound. In the form illustrated,

the receptacle 4&- has a threaded neck'portion 46 which screws into internal threads.

on the inner periphery of the flange 42."

A-' shoulder 48 at the base of the flange;

receives a gasket 50, against which theupper edge of the neck portion-46 abuts.

The central portion of the bore 34 forms a valve chamber in which'isja reciprocating valve 52 having a tapered endbet, which"! abuts against the inner periphery of the shoulder 36.' The end of the bore34l toward the dash 20 may be larger, as shown at 56 to permitthe valve '52- to be readily inserted'-' when the parts are assembled. It will'be obvious that the valve 52 loosely "fits the chamber 56, closely fits the chamber 3tan'd closes the I smaller portion of the bore which forms an outlet opening-58. A pin 60 pro jects into the chamber 34rfor engagement with the rear end of the valve 52 to limit its axial movement in onefdirection. The shoulder 36 limiting the axial movement of I the valvel52 in the opposite direction,

The valve 52 has a stem 62 projecting beyond the end of the portion 40, to which a button 64 is secured, such asby a pin 66.

The-inner periphery of the part 40 is'screw threaded to receive a packing nut 68. A washer 7 0 around the stem 62 bears against a packing 72 between the washer and the nut 68. A spring 74 resiliently urges the washer 7 0 against the packing 7 2 and urges the valve 52 to a closed position against the shoulder 36.

A vent opening 7 6 is formed in the body portion 32 to provide a communication between the outside atmosphere and the portion of the chambers 56 and 34, behind the valve 52. Another vent opening is provided, as at 78, opening into the chamber formed by the flange 42. This vent opening 78 is also behind the valve 52 and spaced therefrom so that the valve will not close the vent opening when in any one of its positions. It will be understood that the interior of the receptacle 44 is constantly subjected to atmospheric pressure regardless of the position of the valve 52, and that the portion of the valve chamber 34 behind the valve 52 and the chamber 56 are constantly subjected to atmospheric pressure.

Between the outlet passage 58 and the vent opening 78, I have provided an inlet passage 80, opening into the chamber 34 and the neck 46 of the receptacle 44. Preferably the passage 80 is arranged in the wall of the chamber in such a longitudinal position that the valve 52 partially, if not fully, uncovers the opening when the valve is in its closed position, separating the inlet passage 80 from the outlet passage 58, as shown on the drawing. By such an arrangement the passage 80 is subjected to atmospheric pressure when the valve 52 is closed.

In order to connect the passage 80 with the lower portion of the receptacle 44, I have arranged a pipe 82 in the passage 80 eXtending to the lower portion of the receptacle 44 so that when the valve is open and suction appliedto the chamber 58, practically all of the carbon removing compound will be removed from the receptacle 44.

The arrangement of parts, openings and passages is desirable. A single movement of the valve 52 connects the suction passage with the passage 80 and maintains a communication between the outside atmospheric pressure and the receptacle 44. Another desirable feature is that the pipe 82 and passage 80 are subjected to atmospheric pressure when the valve is closed so that, should the valve not properly seat, suction will not draw the carbon removing compound into the engine when the valve is supposed to be closed. The single valve controls a vent communication to the lower portion of the receptacle as well as controls a communication between the passages 58 and 80.

A T connection 84 is screw threaded into the opening 58 and when the device is connected to an automobile, for example, the

pipe leading from the intake manifold to the vacuum tank is cut and its two ends inserted into the ends of the T connection 84. If no vacuum tank is used, another fitting may be substituted for the T connection 84 and a pipe connected from the fitting to the intake manifold.

In the operation of the device, a receptacle containing the carbon removing compound is secured to the body portion 32;

The valve 52 is normally closed and a suction is not applied to the compound. When it is desired to inject some of the compound into the engine, the operator pulls on the button 64, thereby opening the valve 52 allowing the compound to be drawn into the engine. When it is desired to shut off the supply the operator releases the button and the spring 74 returns the valve to its normal position, shutting off thesuction and permitting an atmospheric pressure to be had on the compound in the pipe 82 through which it was being drawn and an atmospheric pressure on the rear end of the valve It will be understood that various changes, including the size, shape and arrangement of parts, may be made without departing from the spirit of my invention and it is not my intention to limit its scope other than by the terms .of the appended claims.

hat I claim is:

1. In an apparatus of the class described, an engine having an intake manifold, a valve body having a chamber therein, a detachable liquid receptacle secured to said valve body, a tubular connection from said valve chamber to the lower portion of said receptacle, a vent from the outside atmosphere through said valve chamber to the interior of said receptacle, a tubular connection from said manifold to said valve chamber, a valve in said valve chamber, and resilient means normally urging said valve to a position for closing the connection between said manifold and said valve chamber.

2. In an apparatus of the class described, an engine having an intake manifold, a valve body having a longitudinal bore therein, a reciprocating valve in said bore, a tubular connection from said bore to said manifold, resilient means for reciprocating said valve in one directioin to close said connection, a liquid receptacle detaehably secured to said valve body, a tubular connection in said valve body forming a communication between the lower portion of said receptacle and the longitudinal bore, said valve body being provided with a vent from the outside atmosphere to the interior of said receptacle, and a projection on said valve extending through said valve body for manually reciprocating said valve in a direction to open said connection. v

3. In an apparatus of the class described,

a valve body having a valve chamber therein provided with an outlet passage and an inlet passage, said valve body being provided with a vent opening into said valve chamber, a valve in said valve chamber, means adapted to normally shut off a communication between the outlet and inlet passages maintaining a communication between a said vent opening and said inlet passage, and a stop for limiting the movement ofsaid valve when it is moved away from its normal position whereby a. communication is made between said passages, said vent opening being separated from both of. said passages. 4. In an apparatus of the class described, a valve body having a valve chamber therein provided with an outlet passage and an inlet passage, said ,valve body being provided with a vent opening into said valve chamber and another vent opening from said valve body to the outside, means on said valve body for detachably receiving a liquid receptacle around said last named vent and said inlet opening, a valve in said valve chamber normally segregating said outlet passage from said inlet passage maintaining a communication between said vent opening and said inlet passage, and means for positioning said. valve to form a communication between said inlet and outlet passages with said vent segregated from said passages. I

5. In an apparatus of the class described, a valve body having a valve chamber, inlet and outlet passages to said valve chamber, a vent for said valve chamber, and means in said valve chamber for closing the outlet passage adapted to form a. communication said valve chamber, normally closing the outlet opening, and a stop to limit the open position of said valve between the air passage and the inlet opening.

8. In an apparatus of the class described, a valve body having a cylindrical valve chamber, said valve body being provided with an outlet passage in axial alignment with said valve chamber, an air passage in the side wall of said valve chamber, and an inlet passage in the side wall of said valve chamber between the outlet passage and the air passage, a piston valve in said cylindrical valve chamber, and means for positioning said valve between said air passage and said inlet passage and between said outlet passage and said inlet passage,

CARL BREER.

- MELBOURNE L. CARPENTIER.

between said inlet passage and said ventwhen the outlet passage is closed, and a communication between said inlet passage and said outlet passage when'in another position, the communication between the vent and the outlet and inlet passages being closed.

6. In an apparatus of the class described, a valve body having a vented valve chamber and at least three passages, an outlet passage, an inlet passage and an air passage leading to the outside ofsaid valve body, and a valve having a closed position at one end of the chamber for closing the outlet passage and an open position between the air passage and the inlet passage within said chamber adapted to form a communication between two of the passages when in either the open or closed position, said inlet passage being in communication with the air passage when the valve is in its closed position and in communication with the outlet passage when the valve is in its open position.

7. In an apparatus of the class described, a valve body having a vented valve chamber, an outlet opening, an air passage, an inlet passage between the outlet opening and the air passage, and a reciprocating valve in 

